Software Guide
Page 159
... forwarding) and a set of ports (per VLAN), only one of UplinkFast After Direct Link Failure Switch A (Root) Switch B L1 L2 Link failure Switch C L3 UplinkFast transitions port directly to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 Specifically, an uplink group consists of the root port (which is connected...
... forwarding) and a set of ports (per VLAN), only one of UplinkFast After Direct Link Failure Switch A (Root) Switch B L1 L2 Link failure Switch C L3 UplinkFast transitions port directly to forwarding state 11242 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-3 Specifically, an uplink group consists of the root port (which is connected...
Software Guide
Page 160
...to the root bridge. Switch A, the root switch, connects directly to Switch B over link L1 and to Switch C over link L3 is in the blocking...port and there are no blocked ports, the switch assumes that are transmitted per 100 ms. Each dummy multicast frame uses the station...Switches receiving these alternate paths to transmit a new kind of a BackboneFast network topology. A switch detects an indirect link failure (the failure of the blocking state (if they were in the network backbone after a spanning tree topology change occurs. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
...to the root bridge. Switch A, the root switch, connects directly to Switch B over link L1 and to Switch C over link L3 is in the blocking...port and there are no blocked ports, the switch assumes that are transmitted per 100 ms. Each dummy multicast frame uses the station...Switches receiving these alternate paths to transmit a new kind of a BackboneFast network topology. A switch detects an indirect link failure (the failure of the blocking state (if they were in the network backbone after a spanning tree topology change occurs. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
Software Guide
Page 161
... maximum aging time for the failure of BackboneFast after Indirect Link Failure Switch A (Root) L1 Link failure Switch B L2 L3 Switch C BackboneFast transitions port through listening and learning states to Switch A, the root switch. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-5 Switch B no longer has a path to link L1. This switchover takes approximately 30...
... maximum aging time for the failure of BackboneFast after Indirect Link Failure Switch A (Root) L1 Link failure Switch B L2 L3 Switch C BackboneFast transitions port through listening and learning states to Switch A, the root switch. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-5 Switch B no longer has a path to link L1. This switchover takes approximately 30...
Software Guide
Page 393
...which it is automatically disabled on the WS-4232-L3 module The SPAN line in loopback mode. A blocking gigabit port reflects at 100 Mbps. The reflector port cannot be used..., and it is removed from the source list for analysis at the destination port. A 10/100 port reflects at a slightly lower rate. VSPAN You can be a reflector port for the...session is disabled if the Admin source VLANs list is empty. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 26-3 The following guidelines for VSPAN sessions: •...
...which it is automatically disabled on the WS-4232-L3 module The SPAN line in loopback mode. A blocking gigabit port reflects at 100 Mbps. The reflector port cannot be used..., and it is removed from the source list for analysis at the destination port. A 10/100 port reflects at a slightly lower rate. VSPAN You can be a reflector port for the...session is disabled if the Admin source VLANs list is empty. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 26-3 The following guidelines for VSPAN sessions: •...
Software Guide
Page 429
... Fast Ethernet switching module WS-4148-FX-MT 18-port server switching 1000BASE-X (GBIC) Gigabit Ethernet WS-4418-GB Catalyst 4006 Backplane Channel Module WS-X4019 48-port 10/100 Fast Ethernet RJ-45 WS-X4148-RJ Catalyst 4003 and 4006 Layer 3 Services Module WS-X4232-L3 12-port 1000BASE...WS-X4448-GB-RJ45 Power Consumed During Operation (W) 110 25 30 50 0 10 10 35 Power Consumed in Reset Mode (W) 110 25 30 50 0 10 10 30 50 35 120 60 90 75 55 35 120 10 80 50 10 10 65 40 120 70 110 70 90 50 120 72 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... Fast Ethernet switching module WS-4148-FX-MT 18-port server switching 1000BASE-X (GBIC) Gigabit Ethernet WS-4418-GB Catalyst 4006 Backplane Channel Module WS-X4019 48-port 10/100 Fast Ethernet RJ-45 WS-X4148-RJ Catalyst 4003 and 4006 Layer 3 Services Module WS-X4232-L3 12-port 1000BASE...WS-X4448-GB-RJ45 Power Consumed During Operation (W) 110 25 30 50 0 10 10 35 Power Consumed in Reset Mode (W) 110 25 30 50 0 10 10 30 50 35 120 60 90 75 55 35 120 10 80 50 10 10 65 40 120 70 110 70 90 50 120 72 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...